supply of automatic voltage regulator (avr) , automatic voltage regulator (avr )cin 81a ( indigenous) suitable for 500 kva ,75 0 volts 1500 rpm and 400 kw 3 phase 50 hz bhel eml/kel/ kel eml make alternator model ta3560 l7sp in lhb power car confirming to rdso specification rdso/ pe/ spec/ ac/0084-2008 rev-1. make : m/s bhel electric machines ( bangalore) , m/s kirloskar electric co ltd (kel) - kasaragod . material shall be proc ure from the said oem or his authorized dealers or firm who submit proof of purchase from oem/ dealers wi th history of said oem s material supply to the railway. [ warranty period: 30 months after the date of del ivery ] ]